Oil-burner.



of this burner complete.

El@ illlll iii GIL-BURNER.

Specification of Letters Riteiit. Faabyggff lippe 15 j @go Applicationled October 24:, Hilti. Seri-al No. 259,505.

ed certain new and useful Improvements inl Uil-Burners, of which thefollowing is a specification.

This invention relates to liquid and gaseous fuel burners, and moreespecially' to those which spray heavy oils and then reduce the spray orvapor to gas before' consuming the saine.

The object of the invention is primarily to break up crude and heavyoils into very line spray, initially by a jet of air and subsequently bymechanical means, and then heat the spray so as to convert it into gaslbefore it is finally mixed suiiciently` with air to be consumed.

Another object is to render the parts of the burner detachable so thataccess may he had to the interior for cleaning and repair.

Other obj ects will appear in the following specification and claims andreference is made to the drawings wherein, Figure 1 is a longitudinalsectional View Figs. 2, 3 andl 4f are cross sections on the lines 2 2,3-3 and 4-4 of Fig. l.

This device may be said to be made up oit four primary parts, viz: theinlet at one end, the nozzle at the other end, and the body between andconnecting these menibers` and containing the spreader. All parts aredevtachably connected, andthe outlet end of ythe body coasts withthevinlet end of 'the nozzle to produce a globular cavity in which thespreader elementsare eontainedf The body 1 is enlarged at its inner endinto an internally threaded bell 2 whose bottom is formed with a cavity3 and in the axial bottoin of the cavity is a jet opening l. The outletend or1 the body is formed with a sein`i globular cavity 5 vwith whoseairis said jet opening communicates; i., opposite sides oi" said cavityare inwardly projecting lugs S, and around this end of the body a flangeTi pierced with holes for bolts or screws 8, While'the face of thevflange iiiay have a groove 9 for apurpose yet to appear.

The nozzle l() has a cylindrical body il enlarged into a bell 12 at itsinner. end having an internal senti-globular cavity i5 coacting withthat numbered 5, a flange la? re- Civing the'bolts or screws 8, and aril,- 19

entering said groove' 9. The anis of the cavity nas a large outletopening la conin niunicating with a Venturi tube 13 which is held withinthe body il by appropriate' means such as pins 'le and screws 18, andthe body llv is space between it and the turi' tube. i

rl`h'e inlet member 2l of the burner inexterior ofthe Ven- .eludes `anelbow 2v2 whose upper vhorizontal provided with air inlets 20 to the armis internally enlarged as at 28 and eX- ternally threaded as at 24 toscrew into the bell between the bottom of which and the end of' thishorizontal arm is left quite an appreciable chamber 25. The lower and'vertical arm or". this elbow constitutes an oil inlet as indicated at26. Through the angle of the elbow ed body engaging suitable. threads insaid angle seen and its inner end being reduced as at 29 softhat anannular chamber 80 is formed, between the inner end of the plu and thewall of the' enlarged bore 23l of the horizontal arni of the elbow,tliisehamlber communicating with the chainber .25 re,-

.ferred to. The head Si of 'the plug is en-v larged and stands `behindthe angie of the elbow.

A second elbow 32 provided, its lip-perandl horizontal arm beingenlarged and inis screwed a plug 27, its threadl "T5 ternally threadedas at 33 to nscrew onto the head 35. against Athe angle of'theiirst'elbow, and its bore 34C communicating with the'interior of theplug as shown, kkwhile its lower. and vertical arni constitutes an airinlet 36.'

Through a stuiiing gland 35 in the` angl@ of this elbow passes a rod 37having athieaded body 38 engaging the elbow, beyond which it` iscontinued along the *axis ofthe The spreader is inane np of threeelements best seen in il, 3 fi, cone 60 stands within "he cavity i5,with its `tip directly 'V and slightly spaced from the jet ope fl, saidtip being by a series et slightly oblique openings or perforations 5l,and opposite edges of the surrounded 4 cone-plate are notched-as. at 52for. detacli-4 4 able engagement with the lugs 6. rifhe cone has a "stem53 projecting to the rear along its axis. The next part shown 1n l `1g.31s a disk having a hub 54 provided with a socket to receive said stem,and the parts are shown` Aassembled in Fig. 1.

Around this hub the body oi the disk is provided with wings 55, betweenwhich are perforations 5G. VThe periphery of the disk fits within thecavity 15. Next in rear of this element is another disk best seen inFig. 4. This also has a socket at its center fitting over the rear end0f thestem 53 and its body is perforated as shown at 57. The disk itselfis numbered 58, and its periphery tits 4within the rear portion of thecavity 15, its socket being held on the stem by assembling the twomembers which make up the complete globular cavity 5, 15 and passingthescrews 8 through the flanges.

Crude-or heavy oil is now admitted at 26, and air under pressure at 3G.The oil flows through the annular chamber 30\and into the chamber 25around the inner endofA thedv plug and finally into the cavity 30 withinthe space between the rounded inner end ot' this plug and the opening 4.Now when air is admitted by adjusting the needle valve, it

.'lows out of the .valve in a strong blast and carries a film of oilthrough the jet opening into the globular cavity. Here it is split up onthe cone point and then flows successively through the perfor-ations 51,56 and 57.

Passing through the opening 14, it flows into and through the Venturitube 13 and out the outlet end of the same, joining air from the annularspace between this tube and the cylindrical body 11, which air wasadmitted at 20; and the mixed air ant gas burn. with, great heat andintensity at the point of exit at the right of Fig. 1. I have found thata burner of this character, by experience, will burn crude or heavy oilsvery'successfully. It is not the oil which is burned, because the oil isbroken up by a blast of air into .a spray and the particles still morefinely divided by passing through the spreader. The nozzle soon becomesWarm and its end 12 therefore heats the lparticles before they enter theVenturi tube my invention. It is to be understood that I may make suchchanges 1n construction and arrangement and combination of parts,materials, dimensions, et cetera, as may prove expedient and fall withinthe scope of the appended claims.

Having thus fully described my' invention, what I claim as new anddesire to se cure by Letters Patent is l. In a burner, the combinationwith a body having a cavity Vin its outlet end, a nozzle having a cavityin its inlet end, abutting flanges around the cavities of these members,bolts connecting the flanges, and means for admitting oil and airthrough the body and into its cavity; of a spreader removably mountedwithin said two-part cavity and pierced with perforations out ofregistry with each other. 2. A burnercomprising a body containing aglobular cavity and having a jet opening leading thereto, means forforcing oil through said opening, spreading means within said cavity andincluding a cone directed toward said opening, and a nozzle consistingof a cylindrical body communieating With/Y the outlet portion of the.spreader and a Venturi tube within this body. l

3. In a burner, the combination with a body having a semi-globularcavity in its outlet end, a nozzle having a semi-globular cavity in itsinner end, means for `connecting these members, and means ior admittingoil and a'ir through the body and into its cavity, of a spreadercontained within said cavity and made up of a plurality ot' disks withperforations out of registry with each other.

4. In a burner, the combination with a body having a semi-globularcavity in its outlet end, av nozzle having a semi-globular cavity in itsinner end, means for connecting these members, and means for adn'iittingoil and air through the body and into its cavity; of a spreadercontained within said cavity and comprising an element having a conedirected toward said inlet and surrounded by perforations, and disks inrear of this element and having perforations out of alinement with thosefirst named.

5. 1n a burner, the combination with a body having a seini-globularcavity in its outlet end, a nozzle having a semi-globular cavity in itsinner end, means for connecting these members and means for admittingoil and air through the body and into the cavity; of a spreadercontained Within said' cavity and comprising an elenient having a conedirected toward said inlet ,and surrounded by pert'orations and a stemproject- .ing to the rear from its axis, a disk in rear of said cone andmounted on its stem, its body being provided with perforation's, andanother disk in rear of the lirst disk and having a socket mounted onsaid stem and its body perforated, the peripheries of said disks beingheld within the cavity.

lin a burner, the combination with a body having cavities at its inletand outlet ends connected by an axial jet opening, a groove around its.outlet end, and a flange around said groove, a nozzle having a bellfrom the center of said cavity, a nozzle secured to the outlet end, ofthe body, said end and the inlet end of the nozzle having regis.

tering cavities, and a spreader' within these cavities; of an inlet madeup of an elbow having one` aro 1 screwed into said bell mouth andinternally enlarged and the other arm connected with an oil inlet, aplug screwed into the angle .of said elbow and extending along itsenlarged portion and having a valve opening; Vat its tip standingopposite said jetopening,l a second elbow screwed onto the protrudingend ot the plug and having a bore connnuinicating with that of the plugand its inlet arm connected with an air sup` ply, and a needle valvewhose stein is adjustably mounted through the angle of the lastnamedelbow and whose tip coacts with the valve seat.

8. lln a burner for crude oils, the combinaltion with a body having' abell mouth with an inlet cavity in its bottom, an outlet cavity in therear end of said body, and a jet opening connecting these cavities, anda nozzle having a bell mouth with the cavitv thereof coacting with theoutlet cavity of the body, means for connecting these elements, and aspree( er within the compound caritv thus produced; of' an inletincluding an elbow v whose horizontal arm is screwed into the bell tionwith a body having a bell mouth with an inlet cavity in its bottom,an-outlet cavity in the rear end of said body, and a jet openingconnecting these cavities, and a nozzle having'a bell mouth with thecavity thereof coacting with the outlet cavity of the body, means forconnecting these elements, and a spreader within the compound cavitythus produced; ot an inlet including an elbow whose horizontal arm isscrewed into the bell mouth of the body, leaving a chamber between itsinner end and the bottoln'ot1 said bell, its vertical arm constitutingran oil inlet, a. plugthrongh the angle of this elbow, the plug having atubular body with al valve seat at its inner end, a needle valvecont-rolling said seat, the outer end of the plug being enlargedinto ahead standing against the angle of said elbow, a second elbow whosehorizontal rarm is screwed onto said head and whose upright armconstitutes an air inlet, and means in this elbow 'for permittingadjustment of said needle.

ln testimony whereof l affix my signature in presence of two witnesses.

Y WlLLlAM L. PERRY.

Witnesses A. Gr. SALA, M. A. MITCHELL.

